| 31 Products | Dec 2024 | Dec 2025 | Change |
| Kit Kat Nestle KitKat Chunky Milk Chocolate Bars Multipack (40g) | £1.46 | £1.81 | + £0.35 24% increase |
| | £1.50 | £1.98 | + £0.48 32% increase |
| | £1.50 | £2.00 | + £0.50 32.7% increase |
| | £1.50 | £1.95 | + £0.45 32% increase |
| | £1.50 | £2.25 | + £0.75 36.7% increase |
| | £1.50 | £1.50 | £0.00 29.3% increase |
| | £1.35 | £1.35 | £0.00 24.3% increase |
| | £1.83 | £2.35 | + £0.52 24.8% increase |
| | £1.00 | £1.00 | £0.00 23.3% increase |
| | £1.50 | £1.95 | + £0.45 24% increase |
| Kit Kat 2 Finger Milk Chocolate Biscuit Bars Multipack () | £2.91 | £2.88 | - £0.03 -1% decrease |
| | £2.70 | £2.74 | + £0.04 1.5% increase |
| | £3.50 | £2.75 | - £0.75 -11.3% decrease |
| | £2.85 | £2.85 | £0.00 -7.9% increase |
| | £2.65 | £2.85 | + £0.20 -4.4% increase |
| | £3.50 | £3.50 | £0.00 -3.3% increase |
| | £2.85 | £2.85 | £0.00 -3% increase |
| | £2.80 | £3.50 | + £0.70 1% increase |
| | £2.85 | £2.35 | - £0.50 -1.4% decrease |
| | £2.49 | £2.49 | £0.00 -1% increase |
| Kit Kat KitKat Milk Chocolate Bar Multipack 4 Finger (41.5g) | £1.56 | £2.65 | + £1.09 69.9% increase |
| | £1.50 | £1.98 | + £0.48 32% increase |
| | £1.50 | £2.00 | + £0.50 32.7% increase |
| | £1.50 | £1.95 | + £0.45 32% increase |
| | £1.50 | £2.25 | + £0.75 36.7% increase |
| | £1.65 | £1.65 | £0.00 28.8% increase |
| | £1.25 | £1.25 | £0.00 25% increase |
| | £1.83 | £2.35 | + £0.52 25.5% increase |
| | £1.85 | £8.50 | + £6.65 74.5% increase |
| | £1.50 | £1.95 | + £0.45 69.9% increase |
| Kit Kat Milk Chocolate Biscuit Bar Multipack (186.3g) | £1.92 | £1.92 | £0.00 No change |
| | £1.95 | £2.18 | + £0.23 11.8% increase |
| | £2.20 | £2.25 | + £0.05 6.7% increase |
| | £1.00 | £1.00 | £0.00 5.2% increase |
| | £2.00 | £2.00 | £0.00 3.9% increase |
| | £2.28 | £2.60 | + £0.32 6.3% increase |
| | £1.75 | £1.75 | £0.00 5.4% increase |
| | £1.95 | £1.40 | - £0.55 0% decrease |
| | £2.20 | £2.20 | £0.00 No change |
| Kit Kat KitKat 2 Finger Orange Chocolate Biscuit Bar Multipack () | £1.93 | £1.90 | - £0.03 -1.6% decrease |
| | £1.95 | £2.18 | + £0.23 11.8% increase |
| | £2.20 | £2.25 | + £0.05 6.7% increase |
| | £1.00 | £1.00 | £0.00 5.2% increase |
| | £2.00 | £2.00 | £0.00 3.9% increase |
| | £2.20 | £2.20 | £0.00 3.2% increase |
| | £1.95 | £1.95 | £0.00 2.7% increase |
| | £1.95 | £1.40 | - £0.55 -2.1% decrease |
| | £2.20 | £2.20 | £0.00 -1.6% increase |
| Kit Kat Dark Chocolate 2 Finger Biscuit Bars Multipack 9x20.7 () | £1.88 | £1.87 | - £0.01 -0.5% decrease |
| | £1.95 | £2.18 | + £0.23 11.8% increase |
| | £2.20 | £2.25 | + £0.05 6.7% increase |
| | £1.00 | £1.00 | £0.00 5.2% increase |
| | £2.00 | £2.20 | + £0.20 6.7% increase |
| | £2.20 | £2.20 | £0.00 5.3% increase |
| | £1.50 | £1.50 | £0.00 4.4% increase |
| | £1.95 | £1.40 | - £0.55 -0.5% decrease |
| | £2.20 | £2.20 | £0.00 -0.5% increase |
| Kit Kat Dark Mint Chocolate Biscuit Bar Multipack () | £1.74 | £1.70 | - £0.04 -2.3% decrease |
| | £1.13 | £1.13 | £0.00 No change |
| | £2.20 | £2.25 | + £0.05 1.2% increase |
| | £2.20 | £2.20 | £0.00 1.1% increase |
| | £2.00 | £2.20 | + £0.20 3.7% increase |
| | £1.25 | £1.25 | £0.00 2.8% increase |
| | £1.00 | £1.00 | £0.00 2.5% increase |
| | £1.95 | £1.40 | - £0.55 -3% decrease |
| | £2.20 | £2.20 | £0.00 -2.3% increase |
| Kit Kat Vanilla & Chocolate Ice Cream Cones (110ml) | £3.37 | £3.37 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| | £3.60 | £3.60 | £0.00 No change |
| | £4.00 | £4.00 | £0.00 No change |
| | £4.00 | £4.00 | £0.00 No change |
| Kit Kat Bites Milk Chocolate Sharing Bag (90g) | £1.39 | £1.39 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.60 | £1.60 | £0.00 No change |
| Kit Kat KitKat Fairtrade 4 Finger Milk Chocolate Bar X (332g) | £2.71 | £3.15 | + £0.44 16.2% increase |
| | £2.75 | £3.50 | + £0.75 27.3% increase |
| | £2.50 | £3.48 | + £0.98 32.7% increase |
| | £2.50 | £3.50 | + £1.00 35.3% increase |
| | £3.00 | £3.20 | + £0.20 27.1% increase |
| | £3.00 | £2.75 | - £0.25 19.6% decrease |
| | £2.49 | £2.49 | £0.00 16.2% increase |
